A Norway Special Forces soldier attends a military exercise in Udbina

A Norway Special Forces soldier attends the "Jackal Stone 12" military exercise in Udbina September 17, 2012. One of the largest international military training exercises for special forces in Europe, Jackal Stone 12 aims to expand cooperation between the armed forces of participating countries and strengthen regional security and stability, according to Croatia's Ministry of Defense. (Antonio Bronic/Reuters)

A Norway Special Forces soldier attends the “Jackal Stone 12” military exercise in Udbina September 17, 2012. One of the largest international military training exercises for special forces in Europe, Jackal Stone 12 aims to expand cooperation between the armed forces of participating countries and strengthen regional security and stability, according to Croatia’s Ministry of Defense. (Antonio Bronic/Reuters)